A.decrease until the engine speed increases
B.increase as the load increases
C.decrease as the load
D.increases remain unchanged
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A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention
A.Lube oil is diluted and its viscosity is reduced
B.Sulfuric acid is formed
C.Bearings become pitted ad immediately fail
D.Valve stems develop sludge deposits
A.excessive surging at governed speed
B.combustion knock under load
C.poor fuel combustion
D.all of the above
The sludge tank installed in the diesel engine room is used to collect（）
Ⅰ.sludge from the fuel oil settling tanks ad centrifuge
Ⅱ.water that has been collected in the settling tank
A.Ⅰonly
B.Ⅱ only
C.bothⅠand Ⅱ
D.neitherⅠor Ⅱ
A.ignition lag
B.engine horsepower
C.lube oil system pressure
D.specific fuel consumption
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